Cita APA (7a ed.)

London, M. (2021). The spread of COVID-19. Core Library.

Cita Chicago Style (17a ed.)

London, Martha. The Spread of COVID-19. Minneapolis, Minnesota: Core Library, 2021.

Cita MLA (8a ed.)

London, Martha. The Spread of COVID-19. Core Library, 2021.

Precaución: Estas citas no son 100% exactas.